Process of making storage-battery plates.



. PATENTED APR.19,1904Q I J. .BIJUR; PROCESS OF MAKING STORAGE BATTERY PLATES.

UNITED STATES Patented April 19, 190,4.-

PATE T OFFICE.

JOSEPH BIJUR, OF YORK, N. Y.

PROCESS OF MAKING STORAGE-BATTERY PLATES.

' SPECIFICATION forming part of Letters Patent 5N0. 757,718, dated April 19, 1904.

I Application filed February 10,1903. Serial No. 142,748. (No model.)

T0 on whom it may concern:

Be it known that I, JOsEPH BI UR, a citizen of the United States, and a resident of the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in Processes of Making Open-Work Plates for Storage Batteries and the Like, of which the following is a specification.

My invention relates to the manufacture ofopen-work structures for storage-battery plates and the like by an improved process; and its primary object is to enable strong and efiicient plates to be made by embracing a number of individual elements having interstices-as, for instance, grilles or pastils of suitable materialwith molten metal, preferably of the same nature, to form the completed structure, although the elements may have any desired form.

Further objects of my invention will hereinafter appear; and to these ends my invention consists of the improved process for making open-work plates, substantially as hereinafter fully described and claimed in this specification.

In the drawings, Figure 1 is a face view of an element or grille. Fig. 2 is a like view of the grille having its interstices filled with soluble material; and Fig. 3 is a face view of a complete battery-plate formed of a number of elements, the soluble material having been removed from the interstices ofthe plate.

According to my process the finished structures or plates A are made from any desired number of individual elementsin this instance from grilles or pastils Boast in any suitable manner from lead or a suitable alloy or any other desired material. These individual grilles B are then assembled according to the desired arrangement and united by means of molten metal, as molten lead, under 'the proper conditions of temperature and pouring, which in this instance chemically unites or welds the pastils to the molten metal, and if suitable provision is not made for preventing the molten metal from entering the interstices of the grilles they will become more or less clogged, the cooled and hardened metal being difiicult to remove therefrom.

I have found that the molten metal may be prevented from entering the interstices of the grilles or pastils B by first filling them with a suitable material C. (shown in Fig. 2,) which may be removed after the grilles have been united by the molten metal. While various materials may be used for filling the interstices of the grilles, I have found that soda-ash is a suitable material; but I wish to include as at least partial equivalents of soda-ash in the accompanying claims other materials, such as pearl-ash, which, like soda-ash, can be applied as a powder or paste and which under the conditions of my process remains infusible, non-combustible, non-deliquescent, beneficial or at least harmless chemically, non-gas giving, and cohesive after drying from a paste made with a non-s0lvente. 9., alcoholand also soluble by an agent that does not injure the plate.

To recapitulate, I first fill the interstices of the individual grilles or pastils B with the soluble material C to prevent the interstices from becoming filled with the molten metal, then assemble the pastils in the desired ar rangement with channels or spaces between the individual pastils, pour said channels or spaces with molten metal to embrace and thus unite the pastils to form the complete stru'cture A, and then remove the filling material C from the interstices of the pastils with a suitable solvent, which leaves the finished openwork plate A.

Having fully described my invention, I claim, and desire to obtainby Letters Patent, the following:

1. The process substantially as herein described of making open-work plates for storage batteries and the like from individual elements having interstices, which consists in first filling the interstices of the individual elements with a soluble material to prevent said interstices from becoming filled with moltenv metal, assembling the elements in the desired arrangement with channels or spaces between them, pouring said channels or spaces with molten metal to embrace the elements to form TOO 2. The process substantially as herein described of making open-work plates for storage batteries and the like from individual elements having interstices, which consists in first filling the intersticesof the individual elements with a powder infusible at the temperature used in the process, to prevent said in- .terstioes from becoming filled with molten ments with a soluble powder, to prevent said interstices from becoming filled with molten metal, assembling the elements in the desired arrangement with channels or spaces between them, pouring said channels or spaces with molten metal to embrace the elements to form the completed structure, and then removing the soluble powder from the interstices of the elements with a suitable solvent to leave the finished open-work plate.

4:. The process substantially as herein described of making open-work plates for storage batteries and the like from individual elements having interstices, which consists in first filling the interstices of the individual elements with soda-ash, to prevent said interstices from becoming filled with molten metal,

assembling the elements in the desired arrangement with channels or spaces between them, pouring said channels or spaces with molten metal to embrace the elements to form the completed structure, and .then removing the soda-ash from the interstices of the elements with a suitable solvent to leave the fin; ished open-work plate.

5. The process substantially as herein clescribed of making open-work plates for storage batteries and. the like from individual elements having interstices, which consists in first filling the interstices of the individual elements with a soluble material to prevent said interstices from becoming filled with molten metal, assembling the elements in the desired arrangement with channels or spaces between them, pouring said channels or spaces with molten metal to chemically unite the elements to form the completed structure, and then-removing the filling material from the interstics of the elements to leave the finished open-work p ate.

6. The process substantially as herein described of casting metal about an open-work element, which consists in filling the interstices with a soluble substance that is infusible at the temperatures employed, then casting the metal about the said element, and sub sequently washing the structure in a solvent of the said substance.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses. I

JOSEPH BIJ UR. Witnesses:

E. VAN ZANDT, A. L. OBRIEN. 

